Improved machine for sawing wood



wheel.

'dinary manner on rods or ways c c.

i UNITED STATES PATENT OFFICE.

J. A. EDIGK, OF NEWFANE, NEV YORK.

IMPROVED MACHINEOFOR SOAWING WOOD.

Specification forming part of Letters Patent No. 35,997, dated July 23, 1862.

.Logs for Fuel; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, making part of this specification.

Figure l is a plan of my improved machine; Fig. 2, a side elevation thereof; Figs. 3, 4, and 5, views of parts detached.

Like letters designate corresponding parts in all the iigures.

A suitable frame, A, for sustaining the operating parts is provided, in one end of which `is mounted a crankshaft, B, having thereon a ily-wheel, C, which also serves as al brake- To the crank c of this shaft is jointed in the usualmanner the end of apitnian, D, extending forward and secured similarly to the shaft of blocks b b. which slide in the or- To the same shaft ofthe blocks b b is jointed the end of the saw-shank E, which has secured to its opposite end the ordinary crosscut-saw F.

To the frame A, at a suitable position to guide and sustain the shank of the saw without interfering with the reciprocations of the latter, is secured centrally a vertical standard, G, of proper height for the purpose designed, and having longitudinally of the machine a' slot or passage through it in which the said shank plays, and in which it may be raised or lowered, and having also a. slot or passage, c, in it transversely of the machine, through which pass guide-pins d d, connecting two sliding block-s, H H, respectively, at the opposite sides. The saw-shank plays between these pins, so that it is not only guided truly forth and back in its reciprocatious, but is also raised or adjusted in the standard, so as to remove the saw from the log it is cutting by Simplyraising the sliding blocks H H, for which purpose the lower guide-pin, d, is made to project on either side, thereby forming handies.

4guide-standard, I, similar to the standard G,

above described, and on the same line with it.

This standard is rigidly fastened to a crosspiece, K, forming its base, which is secured to the end of the frame A by pinsff in its eX- tremities iitting,respec tively,in corresponding sockets of the frame, as indicated in Figs. l and 2. This cross-piece may be heldin place by hooks thereon hooking into catches on the frameor in any convenient manner. The top of the guide-standard I is sustained by being connected with the standard G by a connecting-piece, L, fitting over pins in the tops of the Y standards, respectively.

The guide-standard I is provided with a slot, g, Fig. 3, longitudinally ot the machine, and on each side of this slot in the standard is made a groove, (indicated by dotted lines,) in which plays up and down a slide, M, having a cleft or space, h, therein of justsutlicient size for the back of the saw to iit in and-be properly guided in its reci'procations. j

As the saw cuts down in the log the slide M follows by its own weight, and thus always keeps the saw in proper place, land guides it so that it can never run out of its true course. This arrangement is very simple and effective, and the saw by running clear never injures the standard. By unhooking the cross-piece and Adrawing it away from the frame, so as to release the pins j' f from their sockets, the said cross piece, together with its standard, may be swung round to one side of the machine (the saw bending sufficiently for the purpose) Without theconnecting-piece L being removed from its place, which connecting-piece thus serves as a radial guide to the swinging of the device. This removal of the standard I to one side is necessary to allow the ends of large and heavy logs to be rolled onto the feeding-roller, as they cannot be easily moved endwise for the purpose. Thus the guide-standard, with its slide M, always guides and sustains the saw in every position, and is also easily removablefor the purpose of allowing logs to be, rolled on the end of the frames, and this I cousider important in a machine of this kind.

To the standard G, at a suitable position, is secured a cord, N, extending thence to the end of the machine, over the ily-wheel C, where itis attached to the end ot' a brake, O, substantially of the form represented, and conveniently secured by jointing or otherwise to the frame, and the rubber of which bears on the Vperiphery of the ily-wheel. By means of this arrangement the attendant, simply bearng on the opposite end of the cord, can apply the brake to the wheel, so as to equalize or retard the motion at any time, which is espe- 4 cially essential at the momentl of feeding the log along for a new cut, as will be presently described. In doing this the attendant does not have to change his position or station, which is necessarily at the standardvG, where he can govern the action of the saw and of the feeding device, as will be directly explained.

On the shaft of the iiy-wheel is situated a pulley, i, connected by a band, P, with asimilar pulley, k, turning loosely on anothershaft, Q. This shaft has at its opposite end abevelpinion, 7, gearing into a bevel-wheel, m, whose shaft a extends longitudinally of the machine, and has a spur-wheel, o, meshing with a similar wheel, p, the shalt r of which extends to the end of the frame, and has on it a feedingroller, R, of suitable size, and provided with suitable spurs or points, so as to hold in the log, which is placed thereon and fed forward endwise under the saw.

Opposite the feed-roller,at a suitable position on a bed, S, is situated a gage, T, consisting of a shank, n, pivoted in its center in any one of a set of adj.ustingholes,w w,iu said bed, and having jointed or hinged toits outer end, as represented at s, an arm, t, which extends i'orward to a point about corresponding with the middle of the end of the log. The arrangement of the gage is shown most clearly in Fig. 5, which is a plan. Thejoint s of the gage allows the arm i to be thrown up or back, as indicated by red lines, Fig. 5, for a purpose that will presently be explained; To the inner end of the shank of the gage is secured one end ofa rod., c, the opposite end being secured in any one of a set of adjusting-holes, x x, madein a sliding bar, U, which extends back longitudinally on one of the sills of the frame, (resting in guides y y.) To the oppo;

site end of this sliding bar is jointed ata', a lever, V, which is pivoted to the frame at a suitable position at z, the other end being formed into a forked clutch, b', which fits over and operates a sliding coupling, c', Fig. 4, of ordinary shape resting on a square portion, d', of the'shaft Q. Wvhen moved forward, the coupling c' engages with a coupling, f, of similar shape secured to the pulley k, by which means motion is given to the shaft Q,and consequently to the feeding-roller. At a point nearly opposite the standard G, where the attendant stands,is situated a projection, g', of the sliding bar U,bchind which fit-s the upper end of a bent tread-lever, W, which is pivoted to the frame in such a manner that the coupling can be thrown in gear by the pressure of the foot thereon. Thus arranged, when the shaft Q is in gear with the pulley K and the feeding-roller is in motion, the gage Tis in the position indicated by the black lines, Fig. l, the hinged arm t turning inward at an angle toward the end of the log. As the log is fed along', it strikes the end of the said arm,forc i`ngit outward,thereby acting on the rod o and sliding bar U, and when the proper length of the cut is reached the coupling c on the shaft Q is finally ungeared from its companion and the feeding motion arrested, the position of the parts being then as represented by the red lines, Fig. '1. Then the log is to be fed along to another cut, (the first cut being removed,) it is only necessary for the attendant to press his foot on the tread-lever W to throw the parts in gear again. By means of the adjusting-holes 'w yw and :c the length ofthe cuts is adjusted as desired, so that varying lengths of ordinary compass may be secured.

As the guide-standard I is in the way of removing the cuts of thelogs endwise of themachine,it is necessary that they be thrown forward over the side thereof. To facilitate this,

and lessen the labor as well as the trouble, es-

pecially in removing the cuts of large logs, is the object of my making the arm t of the gage hinged so that it may be turned up or back out of the way. This leaves the space in front ofthe end of the log open,so that the cut can be easily thrown off, the hinged arm thus answering a double purpose, which is indispensable in my machine.

Iam aware that machines for thesame'purpose resembling mine in principle have before been used; but Ido not claim separately any of the parts herein described.

Vhat I claim as my invention, and desire to secure by Letters Patent, is-

l. The adjustable jointed gage T, consisting of the shank a and hinged arm t, when the same is connected with the coupling o. in such a manner that the laiter is uncoupled by the,

action ofthe log in feeding, and so that the said hinged arm may be turned back for the removal o1` the cut, substantially as herein described.

2. The removable guide-standard I, provided with the supporting-slide M, the brake O, bearing on the ily-wheel, and operated by the cord N, and the standard G, having sliding blocks H I-I, and pins for adjusting the saw, the whole arranged so that one attendant can manage the saine without changing his position, and operating substantially as and for the purposes herein set forth.

In'witness whereof I have hereunto signed my name in the presence of two subscribing witnesses.

J. A. EDICK.

Witnesses:

R. F. Oscoop, D. C. JoHNsoN. 

